Not knowing to whom I should reply I will simply revert back to the OP. Leaving Key West last year I had the TSA Precheck on my boarding pass for both legs of my trip, Key West and Miami. In Key West I couldn't use it as I was told that they weren't set up for that. It worked in Miami, though. Just goes to show that not every airport accepts the Precheck, USA as well as other countries.

Wayne <><